JPS58115725U - Shading blades for light control equipment - Google Patents

Shading blades for light control equipment

Info

Publication number
JPS58115725U
JPS58115725U JP1982011389U JP1138982U JPS58115725U JP S58115725 U JPS58115725 U JP S58115725U JP 1982011389 U JP1982011389 U JP 1982011389U JP 1138982 U JP1138982 U JP 1138982U JP S58115725 U JPS58115725 U JP S58115725U
Authority
JP
Japan
Prior art keywords
light control
control equipment
blade
light
shading blades
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1982011389U
Other languages
Japanese (ja)
Inventor
植松　君夫
Original Assignee
株式会社ニコン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ニコン filed Critical 株式会社ニコン
Priority to JP1982011389U priority Critical patent/JPS58115725U/en
Priority to US06/460,925 priority patent/US4571045A/en
Publication of JPS58115725U publication Critical patent/JPS58115725U/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/18—More than two members

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Diaphragms For Cameras (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本−案の一実施例の半面図、第２図は第１図に
おける■−■断面図、第３図は第１図の羽根の１枚を書
き出した平面図である。　　−〔主要部分の符号の説明
〕、１．　２．　３・・・・・・遮光羽根、ｌａ、　　
ｌｃ、　　２ａ、’　２Ｃ，’　　３ａ、　　３’ｃ−
−−−−−肉抜き凹部、１０．１１・・・・・・レバー
。FIG. 1 is a half-view of an embodiment of the present proposal, FIG. 2 is a sectional view taken along the line 1--2 in FIG. 1, and FIG. 3 is a plan view of one of the blades shown in FIG. - [Explanation of symbols of main parts], 1. 2. 3...shading blade, la,
lc, 2a,'2C,' 3a, 3'c-
----- Recessed portion, 10.11... Lever.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 羽根の両面あ、るいは片面に肉抜き凹部を形成した光劃
御装置用遮光羽根において、該羽根の肉抜範囲を該羽根
あもつ内部応力や大きさに見合った大きさにし、極部的
に弱い部分をなくしたことを特徴とする遮光羽根。In light-shielding blades for light control devices in which thinning recesses are formed on both sides or one side of the blade, the thinning area of the blade is set to a size commensurate with the internal stress and size of the blade, and A light-shielding blade that is characterized by eliminating parts that are vulnerable to light.
JP1982011389U 1982-02-01 1982-02-01 Shading blades for light control equipment Pending JPS58115725U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1982011389U JPS58115725U (en) 1982-02-01 1982-02-01 Shading blades for light control equipment
US06/460,925 US4571045A (en) 1982-02-01 1983-01-25 Light-intercepting blade for a light control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982011389U JPS58115725U (en) 1982-02-01 1982-02-01 Shading blades for light control equipment

Publications (1)

Publication Number Publication Date
JPS58115725U true JPS58115725U (en) 1983-08-08

Family

ID=11776648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982011389U Pending JPS58115725U (en) 1982-02-01 1982-02-01 Shading blades for light control equipment

Country Status (2)

Country Link
US (1) US4571045A (en)
JP (1) JPS58115725U (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827348A (en) * 1988-05-02 1989-05-02 Polaroid Corporation Exposure control system for dual mode electronic imaging camera
US4879592A (en) * 1988-05-02 1989-11-07 Polaroid Corporation Camera with two-bladed shutter mechanism with multiple filter apertures disposed for relative movement to provide sequential color separation exposures
JPH0624823Y2 (en) * 1988-05-11 1994-06-29 株式会社精工舎 Focal plane shutter for camera
JP3562903B2 (en) * 1996-05-31 2004-09-08 セイコープレシジョン株式会社 Focal plane shutter
US7119883B2 (en) * 2004-10-13 2006-10-10 Asml Holding N.V. Correcting variations in the intensity of light within an illumination field without distorting the telecentricity of the light

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847324C2 (en) * 1977-10-31 1983-05-11 Nippon Kogaku K.K., Tokyo Shutter blade for a focal plane shutter that can be driven by a drive mechanism

Also Published As

Publication number Publication date
US4571045A (en) 1986-02-18

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